/Engine/Source/Runtime/Core/Public/Serialization/StructuredArchiveSlots.h
[TOptional](API\Runtime\Core\IO\TOptional)< [FStructuredArchiveSlot](API\Runtime\Core\Serialization\FStructuredArchiveSlot) > TryEnterAttribute ( [FArchiveFieldName](API\Runtime\Core\Serialization\FArchiveFieldName) AttributeName, bool bEnterWhenWriting )